Spray gun regulator



Spt. 12, 1933. s. P. LARSOb J 1,926,293

I SPRAY GUN REGULATOR Filed March 2, 1931 K "Z I /0 35 JOEY.

A TTORNE YS.

Patented Sept. 12, 1933 UNITED STATES Application March 2, 1931.

16 Claims.

This invention is for a spray gun regulator and has special reference to a spray gun used for the purpose of spraying an edible oil on the baking surfaces of a pan.

The main object of the invention is to provide actuating means for a spray gun which can be adjusted to suit the specific requirements accord.- ing to the article of food to be baked.

Another object of the invention is to provide a device as outlined with an indicator for indicating the relative amount of oil sprayed in a given period of time.

A further object of the invention is to provide 7 individual adjusting means whereby variations in construction of the gun may be compensated for,

provide actuating means for a spray gun which is especially suited to the efficient operation of the pan greasing machines which are the subject of separate applications filed by myself as follows: Serial No. 412,704, filed Dec. 9, 1929, Serial No. 519,397, filed March 2, 1931', Serial No. 519,398 filed March 2, 1931.

Other objects and advantages of the invention will become apparent as the following description is read on the drawing forming a part of this specification.

The invention consists primarily of adjustable actuating means for a spray gun; and consists of mounting means for the gun, an actuating lever pivoted on the mounting means, a cam adjustable on the actuating lever, an indicator cooperating with the cam, an actuating arm pivotally suspended and having a cam adjustably secured thereon and adapted to cooperate with a cam surface on the actuating lever, and clamping means for the indicator.

The invention is adequately illustrated in the accompanying drawing on which similar refer-.

ence characters are used to indicate identical parts on the several views, and in which Fig. 1 is a plan view of the invention and showing the supporting means therefor.

Fig. 2 is a side elevation of the invention showing the spray gun in dotted lines;

Fig. 3 is an end elevation thereof; and

Fig. 4 is a perspective view of the adjusting cam.

The spray gun 10 is provided with a compressed air intake at 11, a fiuid inlet at 12, and a nozzle at 13, and is operated and controlled by a smear or ies SPRAY GUN REGULATOR Sven P. Larson, Berkeley, Calif.

Serial No. 519,399

(01. til-45) trigger 14 which actuates a suitable valve systern within the gun. The features outlined abov do not form a part of the invention.

The invention consists of the support for the gun consisting of a pair of oppositely disposed L shaped brackets 15 and 15 between which the gun handle 1'? is clamped by bolts 18, the gun nozzle 13 being directed vertically downward. Pivotally mounted on the bracket 16 by means of a bolt 19 is an actuating lever 20 which has an arcuate slot 21 formed therein and an aperture adapted to rotatably receive the bolt 22. Indicating marks are provided as shown at 23 to indicate the volume or amount of oil sprayed in a given period of time. The opposite end of the lever is beveled as shown at 24 to form a cam surface for cooperation with the actuating cam.

Bolt 22 has a specially shaped'head 25 formed with a cam surface adapted foradjustable cooperation with the trigger l4 and is utilized as the meansof varying the amount of oil sprayed. A cylindrical portion 25 is rotatable in the aperture in lever 20 and provides a shoulder 27 against which an indicator lever 28 is clamped by means of a nut cooperating with thethreaded end 22. The non-circular portion 29 non-rotatably receives the indicator lever-28 which is used for adjusting the cam 25. p

Indicator lever 23 has. an integral pointer 30 adapted to register with the respective indicating marks 23, and has an elongated-arcuate slot 31 adapted to register with the slot 21 in-lever 20 and a non-circular aperture adapted to receive the portion 29 on bolt 22 so that movement of the lever 28 will adjust cam 25; A clamp bolt 32 provided with'a thumb nut 33 for convenient adjustment of the oil feed, c'ooperates between levers 20and 28 through slots 21 and 31.

The actuating arm 34 is pivotally mounted at .35 between brackets 36, the lower end having to contact with cam surface 24 on lever 20.

Thumb nut 33 is loosened and lever 28 moved to coincidence of the pointer 30 with the indicator mark 23 relating to the desired feed and the thumb nut 33 again tightened. Movement of a pan through the pan'greasing machine forces arm 34 to the left as viewed in Fig. 2, causing cam 39 to force the cooperating end of lever 20 down, raising the cam 25 and forcing trigger 14 upwardly, thereby opening the oil and air valves in the gun 10 and creating a uniform spray which issues from nozzle 13 so long as the arm as is held back by the pan. Release of the arm 34 immediately interrupts the spray.

Having described an operative method of constructing and using the device, it will be noted that variations in construction and arrangement which are consistent with the appended claims may be resorted to without detracting from the spirit or scope of the invention or sacrificing any of the advantages thereof.

I claim:

1. Means for controlling a spray gun having an operating trigger comprising, adjustable trigger operating means adapted to govern the rate of flow of fluid from the spray gun by variable cooperation with the operating trigger thereof, and actuating means for said trigger operating means,

said actuating means being adjustable for variation in the initial point of actuation of the trigger operating means as related to the position of the an adjustable eccentric on said lever adapted to govern the rate of flow of fiuid from the spray gun by variable cooperation with the operating trigger thereof, and a pivoted arm provided with adjustable means for actuating said pivoted lever.

3. Means for controlling a spray gun having an operating trigger comprising, a pivoted lever, an eccentric adjustably secured adjacent one end of said lever adapted to govern the rate of flow of fluid from the spray gun by variable cooperation with the operating trigger thereof, the other end of said lever being provided with a cam surface, a suspended, pivotally mounted arm, and a cam adpoint of actuation of the spray gun may be varied relative to a fixed point.

4. Means for controlling a spray gun having an operating trigger comprising, a pivoted lever, an

eccentric adjustablysecured adjacent one end of said eccentric and registrab le with said index, the

other end of said lever being provided with a cam surface, a suspended lever pivotally mounted, a

- cam adjustably secured on said suspended lever and adapted to cooperate with said cam surface for varying the initial point of actuation of said lever relative to a fixed point. j

'6. Means for controlling a spray gun having an operating trigger comprising, adjustable trigger-operating means adapted to permit variable operation of the trigger of the spray gun for controlling the rate of flow of fluid from the gun, and operating means provided with adjustable means for actuating said trigger-operatingmeans whereby the initial point of actuation of the trigger may be varied in relation to the position of the operating means.

'7. Means for controlling a spray gun having an operating trigger comprising, an intermediately pivoted lev 1', an eccentric pivotally mounted adjacent one end of the lever and cooperating with said trigger of the spray gun, adjusting means for said eccentric, securing means for said adjusting means, and for actuating said lever whereby the initial point of actuation may be controlled in relation to a fixed point.

8. Means for controlling a spray gun having an operating trigger adapted to govern the rate of new of fluid from the gun by variable depression of the trigger, comprising adjustable release means adapted to cooperate with the trigger for varying the depression thereof, and adjustable means cooperating with said adjustable release means whereby the point of initial actuation of the trigger may be determined relative to a predetermined point.

9. Means for controlling a spray gun having an operating trigger adapted to'govern the rate of flow of fluid from the gun by variable depression of the trigger, comprising adjustable trigger operating means, and adjustable means for actuating said trigger operating means.

10. Means for controlling a spray gun having an operating trigger comprising, means for securing the gun in fixed position, trigger operating means in cooperative relation to the trigger and relatively adjustable, indicating means for indicating the adjustment of said t igger operating means and remotely controlled adjustable;

ing means and remotely controlled adjustable ustably mounted on said arm adapted to cooper- .ate with said cam surface whereby the initial actuating means for said trigger operating means,

said trigger operating means comprising an intermediately pivoted lever, an eccentric adjustably secured in one end of the lever whereby the cooperative relation of the operating means and the trigger may be varied, and, a cam surface formed on the other end of the lever for cooperation with the actuating means.

12. Means for controlling a spray gun having an operating trigger comprising, means for securing the gun in fixed position, trigger operating means in cooperative relation to the trigger and relatively adjustable, indicating means for indicating the adjustment of said trigger operating means and remotely controlled adjustable actuating means forsaid trigger operating means, 7

said trigger operating means comprising an intermediately pivoted lever, an eccentric adjustably secured in one end of the lever whereby the cooperative relation of the operating means and the trigger may be varied, and, a cam surface formed on the other end of the lever for cooperacating the adjustment of said trigger operatingcuring the gun in fixed position, trigger operat' means and remotely controlled adjustable actuating means in cooperative relation to the trigger ing means for said trigger operating means, said actuating means comprising a pivotally suspended arm gravitationally retained in a vertical position, a cam mounted on said arm foradjustable cooperation with the trigger operating means whereby the cam may be made initially cooperative at various angular positions of the arm.

14. Means for controlling a spray gun having an operating trigger comprising, means for securing the gun in fixed position, trigger operating means in cooperative relation to the trigger and relatively adjustable, indicating means for indicating the adjustment of said trigger operating means and remotely controlled adjustable actuating means for said trigger operating means,

said trigger operating means comprising an intermediately pivoted lever, an eccentric adjustably secured in one end of the lever whereby the cooperative relation of the operating means and the trigger may be varied, and, a cam surface formed on the other end of the lever for cooperation with the actuating means, said actuating means comprising a pivotally Suspended arm gravitationally retained in a vertical position, a cam mounted on said arm for adjustable cooperation with the trigger operating means whereby the cam may be made initially cooperative at various angular positions of the arm.

15. Means for controlling a spray gun having an operating trigger comprising, means for seand relatively adjustable, indicating means for indicating the adjustment of said trigger operating means and remotelycontrolled adjustable actuating means for said trigger operating means, said trigger operating means comprising 7 an intermediately pivoted lever, an eccentric adjustably secured in one end of the lever whereby the cooperative relation of the operating means and the trigger may be varied, and, a cam surface, formed on the other end of the lever for cooperation with the actuating means, said indicating means comprising a lever fixedly secured to the eccentric and having an arcuate slot formed to cooperate with a clamping bolt fixed in the pivoted lever, said actuating means comprising a pivotally suspended arm gravitationally retained in a vertical position, a cam mounted on said arm for adjustable cooperation withthe trigger operating means whereby the cam may be made initially cooperative at various angular positions of the arm.

16. Adjustable actuating means for a spray gun comprising, mounting means for the gun, an actuating lever pivoted on the mounting means, a cam adjustable on the actuating lever, an indicator cooperating with the cam, an actuating arm pivotally suspended and a cam adjustably secured thereon and adapted to cooperate with a cam surface formed on the actuating lever, and clamping means for the indicator.

SVEN P. LARSON. 

